19713057

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{163}}^1\times {\mathrm{443}}^1$

素因数の和:629

約数の個数: 32

約数和(自身を含む): 32621568

約数和(自身を除く): 12908511

約数列:

[1, 3, 7, 13, 21, 39, 91, 163, 273, 443, 489, 1141, 1329, 2119, 3101, 3423, 5759, 6357, 9303, 14833, 17277, 40313, 44499, 72209, 120939, 216627, 505463, 938717, 1516389, 2816151, 6571019, 19713057]

約数ペア:

[(1, 19713057), (3, 6571019), (7, 2816151), (13, 1516389), (21, 938717), (39, 505463), (91, 216627), (163, 120939), (273, 72209), (443, 44499), (489, 40313), (1141, 17277), (1329, 14833), (2119, 9303), (3101, 6357), (3423, 5759)]